Water-still.



No. 842,687. n -PATENTED JA N. 291-51907.

. 7 '0. A NENNlNGER.

WATER STILL.

APPLIQATION FILED MAY 2. 1906..

. INVENTOH A TTORNE is nu: NORRI$ PETERS cm. Must-"New", D. c

TTNITED- STATES PATENT OFFICE.

Specification of, Letters Patent.

Patented Jan. 29, 1907.

Application filed May ZTHHDB- Serial No. 314,780.

- tion.

My invention is an improvement in waterstills, and consists 1n certain novel constructions and combinations of parts hereinafter described and claimed.

Referring to the drawings forming a part hereof, Figure 1 is a side elevation of my improved still. Fig. 2 is a longitudinal vertical section thereof, and Fig. 3 is a plan view of the distilled-\vater-receivi11g pan; and Fig. 4 is a detail sectional view of the upper part of Fig. 2-, showing the connection between the main and the condensing cylinder.

In the present embodiment of my invention I provide a stand A, comprising a base a and a yoke a, whose arms a a support the boiler-pan B. The boiler-pan is preferably constructed of cast-iron glazed inside or any other suitable material not easily affected by moisture and is connected to the water-back or circulating-pipes of a kitchen-range or any kind of heating medium in which water-circulation pipes may be placed by means of pipes band I), the pipe 1) leading to the water-back and the pipe I) therefrom. In order to avoid confusion, the pipe I) will be hereafter designated as the discharge-pipe and the pipe I) as the steam-supply pipe.

The discharge-pipe b is arranged beneath the boiler-pan and extends to the opposite side thereof, a T-joint if being interposed in the length thereof and having its vertical member connected by a pipe 5 with approximately the center of the boiler-pan. A second T-joint b is arranged upon the end of the discharge-pipe I), having a faucet 1) connected with its horizontal member and a pipe b connected with its vertical member, the said pipe I) extending upwardly alongside the still for a purpose to be hereinafter described.

A water-gage b is arranged alongside the pipe I)", near the lower end thereof and communicates at either end therewith, the upper end of the water-gage being provided with a faucet b". An overflowi-pipe b is arranged within the boiler-pan, the said pipe having its opening at the level at which it is desired to maintain the water in the boiler-pan, and

a tra b is interposed in the length of the over ow-pipe.

The steam-supply pipe I) communicates with the boiler-pan at a higher level than the discharge-pipe and is provided with a T- joint communicating by an elbow I) with the source of the steam-supply, as shown in Fig. 2, giving admission to a small air-pipe 1), arranged within the supply-pipe and extending to the inner end thereof. A flange b is provided on the upper edge of the boiler-pan to form a seat for the distilled-water-receiving pan 0, the pan being provided with a discharge-faucet c and with a plurality of vertical tubes, 0, extending therethrough and forming communicating passages between the boiler-pan and the space above the distilled-water-collecting pan. A jacket D is arranged above the distilled-water-collecting pan, resting upon flanges 0 formed in the upper edge of the said pan, the jacket forming a condensingchamber above the distilled-wetter-collecting pan.

The condensing-cylinder E is supported .within the condensing-chamber by means of the flanges E thereon, and the upper end of the cylinder is provided with a cross-joint (2, having extending vertically therethrough a supply-pipe 6, connected with a water-main or other source of watersupply, the admission of the water to the condensing-cylinder being controlled by a valve 6 interposed between the supply-pipe and the water-main.

The supply-pipe 6 extends almost to the bottom of the condensing-cylinder, and t0 the lateral branches of the cross-joint are connected a discharge-pipe e closed by a faucet c, and a ipe e extending downwardly alongside t e condensing-chamber to the pipe b before mentioned, with which it communicates.

A valve 6 is interposed in the length of the pipe 6 and connected to the said pipe just above the valve 6 is a pipe f, the said pipe f opening into the bottom of the boiler- .tion in such manner that when the water in the boiler-pan reaches a predetermined level the valve is closed, shutting off the watersupply. Adjacent to the upper edge of the condensing-chamber D is a small opening cl for relieving excess pressure in the said chamber.

In operation the steam passes into the boiler-pan through the pipe b and thence passes upwardly through the openings c into the condensing-chamber and into contact with the cold outer surface of the condensingcylinder. The said'steam being condensed flows back into the distilled-water-receiving pan, where it may be drawn off for use through the faucet c. The circulation of water in the boiler-pan is maintained through the pipes 19 b, and sufiicient air to aerate the distilled water is admitted through the pipe b the steam acting as an injector to draw the air into the chamber. The water in'the condensing-cylinder it becomes heated by. the'heat from the condensed steam may be drawn oil through the faucet e for domestic uses. A constant supply of warm water is supplied to the boiler-pan from the condensing-cylinder through the pipes e and f. It will be understood that when the hot water is'to be drawn off from the condensingcylinder through the faucet e the valve '6 is opened and the cold water from the main. forces out the'hotwater through the said. faucet. The valve (3 is likeudse opened when warm water is to be passed from the c'ondensercylinder to the boiler-pan. By interposing the trap 6 within the overflowpipe -I provide against the entrance of foulair into the condensing-chamber and against the escape of steam therefrom.

The condensing-chamber may consist of the ordinary house-boiler, if desired, or may be made especially for the still. By connecting my improved still as described the house-boiler is made to serve a double purpose that of a condensing-chamber and that of a hot-water receptacle.

My improvement is easily installed and with but little expense.

1. In a water-still, the combination of a base, a boiler-pan supported on the base and provided with inlet and outlet pipes, adapted to be connected with a-source of boiling wa ter, the inlet-pipe being arranged at a higher level than the outlet-pipe, an air-supply pipe within the inlet-pipe,a condensing-chamber above the boiler-pan and provided with a vent in its upper end, a condensing-cylinder within the chamber, a pipe for connecting the condensing-cylinder with a source of water-supply, a pipe connecting the source of water-supply with the boiler-pan, a floatvalve within the boiler-pan at the opening of the said pipe, a receiving-pan below the condenser and between the condensing-chamber and the boiler-pan, a plurality of tubes connecting the boiler-pan with the condenser and traversing the receiving-pan, an outletpipe for the receiving-pan, an overflow-pipe connected with the boiler-pan, and a trap interposed in the overflow-pipe.

2. In a water-still and in combination, a boiler-pan, supply and discharge pipes for connecting the boiler-pan with a water-b ack, an air-supply pipe within the supply-pipe, a condensing-chamber above the boiler-pan, a condensing cylinder within the chamber, means whereby the cylinder may be connected with a source of water-supply, means below the chamber for receiving the distilled water, and means for connecting the boilerpan with the source of watersupply.

3. In a water-still and in combination, a boiler-pan, a supply and discharge pipe for connecting the pan with a water-back, an air-pipe within the supply-pipe, a condensing-chamber above the boiler-pan, a receiving-pan within the boiler-pan and the condensing-chamber, tubes forming a communication between the bOiler-pan and the condensing-chamb er, a cond ensing-cylind or within the chamber, and means whereby to connect the condensing-cylinder with a source of cold-water supply.

4. In a water-still and in combination, a pan for receiving heated water, supply and discharge pipes for the pan, an air-pipe within the supply-pipe, a condensing-chamber supported above the pan, a receiving-pan below the condensing-chamber, and a condensing-cylinder supported within the chain ber above the receiving-pan.

' 5. In a water-still and in combination, a boiler-pan for receiving heated water, means whereby the heated water may circulate to and from the pan, an air-pipe traversing said means and communicating with the pan,- a condensing-chamber above the pan, a condensingcylinder within the chamber, and a receiving-pan between the chamber and the boiler-pan.

OSCAR ALFRED NENNINGER.

Witnesses:

CL 0. LAGERFELT, A. H. PARKER. 

